Free Mattes

I've had to design a few mattes for various projects over the last few months and thought they might be of use to others. All of these mattes are controlled by expressions with simple master controls. You can download the After Effects project file here:

Please drop me a line at jesseshburton@gmail.com if you have any questions on how to use.

And I have a question for the internet regarding the "8-Bit" Matte contained herein. I produced this by painstakingly creating the rectangle configurations in Illustrator and then translating the mask paths to AE. Wondering if any scripting/expressions wizards can think of a way to do it without that manual labor. Is it possible to accomplish the same effect dynamically with a single shape layer?